Lock for elevator doors



Nav. 1o, 1925. 1,561,018

c. w. PEL-ILLE LOCK FOR ELEVATOR DOORS 01M, f2 @JL n IN1/mme @MW /a mon/ver.

Patented Nov. 1Q, l

UNITED sTAreseATeNr oer-ice.

CHARLES W. PEELLE, OEINEW YORK, N. Y., ASSIGNOR TO THE PEELLE COMPANY, OE'

BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

LOCK FOR ELEVATOR DOOR-S.

Application filed December 12, 1924. Serial No. 755,442.

To @ZZ whom t 'may conce/a:

Beit known that I, CHARLES WT. PnELLn, a

citizen of the United States, residing at Douglas Manor, in the borough of Queens, city of New York, county of Queens, and State of New York, have invented Acertain .new and useful Improvei'nents in Locks for Elevator Doors, of which the following is a specification, reference being had therein to the accompanying drawings, which form a part thereof.

u My invention `relates to locks for elevator doors, and more particularly to a .night or dead lock which may be released and set from theloft side only of an elevator door, and cannot be disturbed by unauthorized persons even from the loft de except by the breakage of the lock.

In manyloft buildings, differentlioors are occupied by different business concerns, alllofts being accessible by means of the same elevator. Under suoli conditions, it is desirable for a concern occupying each loft to make the premises occupied by them inaccessible from the elevator, except by a watchman or some authorized person ossessing a key bywhich the lock used for this purpose may be made inoperative from the loft side.l A lock embodying` my invention is so constructed that the means for securing the mechanism in relation to the elevator doors is so protected that when the lock is set, it cannot be removed and replaced in its entirety without disturbing the sealing mechanism, and thus permitting access to a loft from the elevator car and concealment of the fact that such access has been made, and the subsequent replacement of a lock to conceal the fact that the doors have been opened.

The lock made the subject of my invention is particularly adapted for use with doors of the vertically moving type.

A night or dead lock embodying my invention is so constructed that it may be attached to the wall of the building in a position where it may readily cooperate with the sections ofV doors having a vertical sliding" movement, or either of'theni, and yet wlnlej in its normal released position be out of the path of'moveinent ofl thedoor sections,"or either 'of them. uThe construction is suchV that when the boltl of the lock isset, it may 'z lbe heldv against possible| 'release by,I

incarneY of a' padlock for other device, thus o-f a loft or floor may prevent access to the floor from a car within the elevator shaft, or access to a car within the shaft from the floor, by unauthorized persons, and without the use of force in releasing the doors to permit their opening or closing.

The invention consists primarily in a lock for elevator doors consisting of a base plate permanently secured to the building wall adjacent an elevator door, a plate slidably mounted upon said base plate, a bolt carried by said plate, and adapted to enter a socket formed in an elevator door, means acting to normally retract said bolt from the path of movement of the door, and means whereby said last named means may be made inoperative, said slide carrying the bolt having a flange adapted to prevent access to the means securing the lock to the building wall structure when said bolt engages a door, whereby removal of said lock is prevented except by the release of the means acting upon the retracting mechanism; and in such other novel features of construction and combination of parts as are hereinafter set forth and described, and more particularly pointed out in the claims hereto appended.

Referring to the drawings,

Fig. 1 is an elevation of a lock embodying my invention shown in its inoperative relation to the elevator doors, portions of which latter are shown in cross-section;

Fig. 2 is a similar view with. a bolt projecting in the locking position; and

Fig. 3 is a section of the lock mechanism itself, on the line 3 3 of Fig. 2. Y n

Like letters refer to like parts throughout the several views. j

In the accompanying drawings, the lock is shown as apfplied to a so-called counterbalanced door structure, a indicating the upperfof awpair of oppositelyv and vertical slid-l lll ttl)

able door sections. and Z; the lower oli such door sections. The section o provided with an angle bar 'trame e ot the usual construction, haring Seeured to the lower bar ot the "trame the cusiiomaer astragal :I o angle metal. The lower section 7) has the usual angle ba trame e. the upper bar ot which, when the door closed, lapped by the astragal in the manner Shown in the drawings.

The door sections o` and o are mounted upon Suitable rail structures secured to the wall ot the elevator shat't upon opposite sides ol the door opening)r elosed by the door, the eonetruetion ott such rail structures being sueh as to bring the doors close to the wall oli the shattat the door opening.

ln operation, the door section n. mov s u|nvardl}r, and the door .section ZJ, downwardly. Such doors are liiiorided with a locking mechanism exposed within the shaft to prevent opening oit the doors except trom the elevator ear and when a ea r is positioned adgiaeent. i door opening.

r[The toregoine` construction is old and well known in this art, my intention relating` more particularly to a night or dead lock by which opening ot a door from within the shaft, and access to a lollft or lloor when the oceimant thereol ao desires, is prevented in order that the theft olt bulky merchandise duriiu;v hours when the lo'l't or lloor is unoeeupied, may not occur.

lhe construction ol leek embodying the intention shown in the drawings` has a base plate ,t' provided with an outturned flange f/ positioned towards the elevator shaft. Said plate y" hae two elongated eountersunk slots i and f2 therein for receiving: lag1 screws f and bv means ol whieh the base plate secureo in position upon the janib oit a door openimr. lji'eit'erably said plate is loeated adjacent the meeting line ot' the two door sectionsj which ordinarily will, be n iidwa)T between the sill iy nal lintel ol the opening, so that the lock may be. used not onliY to lock one of the door sect-ions with relation to the wall, hut to lock one section in relation. to the other and thus lock both sections in relation to the wall.

Carried by the outturned flange y is a guide stud /i having' an inieiiiiig therethrough at It. Slidably mounted upon the base plate It' is an angle inetal bolt plate e', oneI llange i oit which is ot a length and width to expose the ,slots f and f2, when the bolt is retraeted, and to completelT cover said slots and the screws i and f* when the bolt is shot.

Acting between thel outturned llanee g olIV the base plate and the tlange F? of the bolt plaie extending parallel with, the tlanee y and encircling. the guide studie is a @oiled spring j whieh eert/'es to normally retraet the holt and holdit in a position where it will,

not be engaged with either door section a or The stud 71 passes thiough an opening` in the llange if: o'l the bolt plate vf against which the spring j acts, so as to permit the desired :freedom ol movement o't'said plate i.

Permanentl)Y secured to the flange il olf' the bolt plate z' and in parallel relation with the stud 71 is a bolt proj actingI through an opening' g in the [lange g. Preferably the end ot this bolt is slightly tapered as shown at f, to compensate tor any slightvariance in the position ot the two door sections o and Z) such as ma)7 oceur tlnoug'h the stretching;` of the eenneetine chains used with such doors.

The .alud /t and the bolt 1 are parallel one with the other.` and the stud t has an enlarged head fil .ifor limit inel the im'n'ementot the plate f' and bolt /1 by the apriliel j.

In the it'orm oit the in rention shown, the astragal (l has a bolt opening` fl therethrough which adapted to register with a bolt opening e through the tlange ot the upper bar ot the angle metal 'trame e and extending into the panel of' this door when a metal covered wood panel is used. 1it vm l have shown a padlock, the, hasp ot which parsed through the opening` /11' in the eind /f when the bolt has been shot, .so as to prevent tho retraction ot the. bolt by the sp1-imil j, or the tamperingl with the loch.

ll'hile l', have Shown a construction in which the bolt i; passes through the aatrajral d ot the upper door section a and engages the metallic rim oli the lower door section, it will be readilyY understood that this is merely a desired construction for attording` the maximum measure ot' safety, it beinel pern missible to limit the action ot the loch to either the upper or the lower door section, this lfieinp' controlled by the mere positionine' ot' the base plate upon the door jamb.

Then 1nountin r the plate y" upon the door jamb, the padloelt or other securingl means m is removed trom its engaging relation with the stud /1 so that the spring j may mpart niovement to the bolt plate i to the lull extent permitted by the Vtlaneed end /lf ot the guide stud le. The parallel relation ot the bolt with said stud 71, will ennure the desired ieetilh'ieal movement of said plate and said bolt.

lVhen the parte,l are tima posititmed, the (amntersunk, elongated slots f/' in the baec plate, j will be exposed, thus pern'iittinn` lap,` Screws f'l-j* to be used tor securinpsaid base plate in position. llongated slots per* mit slightl vertical adjustment ofthe.4 plate, when setting` the bolt in relation to the door sections, to accurately position the bolt with relation to the openings dwc and the socket .in the door panel.

lll'hen the plate is properly;l eet, the tapered end L of the bolt ,t must be positioned, out' ot the plane ot movement ot the door eee-4 til) ltlll lltl lilo

liv?

l Il il,

tions so as not to interfere with the 'tree opening and closing ott' the door under normal conditions.

lfVhen it is desired to lock the door, the bolt plate i is forced toward the outturned tlange g against the tension of the spring j, after the elevator doors have been closed, until the bolt passes through the openings g and e and into the socket in the door panel, thus effectively preventing movement of either or both door sectionswith relation to the wall of the elevator shaft.

lVhen the plate e' is thus forced inwardly, the hasp ot the padlock 'm is passed through the opening It', thus eifectively preventing a return movement ot' the bolt plate t' and the bolt- /jr carried thereby. l.lVhen the bolt plate i .is thus positioned, the tlange thereotl will completely cover the slats and f2 and the screws j and jt, thus preventing the removal of the lock in its entirety so as to permit the opening oi the elevator door.

lt will be noted that the bolt c is subjected to little or no shearing stresses, since the door sections are in stationary position when the bolt is shot, and that since the lock is upon the floor side oit the elevator shaft-,it will effectively prevent access to a tloor from the shaft, and also eiifeetively prevent access to the shaft from a 'floor except by a person having a key to the lock m, unless this padlock is broken or the base plate or other parts ol the lock are forcibly removed trom their position, which would give ample evidence oit an unlawful act, and also of the tact that any thefts were by persons from the iioor side of the shaft.

By providing openings d and e in the metal angle bar forming the astragal d and the trame of the door sections, forcible opening of the door is resisted to the maximum extent.

lt is not my intention to limit the inve-ntion to the precise details of construction shown in the drawings, it being apparent that such may be varied without departing troni the spirit and scope oit the invention.

Vlvlaving described the invention, what I claim as new and desire to have protected by Letters Patent, is

l. A lock for eleva-tor doors consisting of a base plate permanently secured to the buildii' 0j wall adjacent an elevator door, a ably mounted upon said base plate, :1 bolt carried by said plate, and adapted to enter a socket 'toi-ined in an elevator' door, nie-ans acting to normally retract said bolt .troni the path et movement of the door, and means whereby said last named means may be made inoperative, said slide carrying the bolt having a i'iange adapted to prevent access to the means securing the lock to the building wall structure when said bolt engages a door, whereby removal et said lock is prevented except by the release of the means acting upon the retraeting mechanism.

2. i lock for elevator doors consisting ot stud carried by said outturned ange and cooperating with said bolt plate, a spring acting between said outturned ilange and said n bolt plate, whereby said bolt is normally retracted from the path o'l movement ot the door, and means whereby said spring may be made inoperative, said bolt plate having a ilange adapted to prevent access to the means securing the lock to the wall when said bolt is engaged with a door, whereby removal ot said lock is pre-vented 'except by the release or the means making said spring inoperative.

3. A lock lor elevator doors consisting ot a base plate having an outturned flange positioned towards the elevator shaft and having an opening therethrough and elongated countersnnk openings therein whereby it may be attached to the amb of a door opening and be adjusted in relation toa socket in the door closing said opening', an angle n'ietal bolt plate, one tlange `of which is slidably mounted upon said base plate and of a width to close said countersunk openings when the bolt is engaged with the doorand prevent the movement of the lock except when the bolt is retracted, a bolt carried by said plate passing through the opening in said ontturned flange and adapted to enter a socket 'formed in an elevator door, a guide stud carried by said outturned flange and co-operating with said bolt plate, a spring acting between said outturned flange and said bolt plate, whereby said bolt is normally retracted from the path of movement ot the door, and means whereby said spring may be made inoperative.

il. A lock for elevator doors consisting of a base plate having an outturned 'flange positioned towards the elevator sha'l't and having an opening therethrough and elongated countersunk openings therein whereby it may be attached to the jamb oit a door opening and be adjust-cd in relation to a socket in the door closing said opening, an angle metal bolt plate, one .tiange o' which is slidably mount-ed upon said base plate and of a Width to close said countersunl-t openings when the bolt is engaged with the door and prevent the .movement of the lock except when t-he bolt is retracted, a bolt carried by said plate passing through the opening in said outturned flange and adapted to enter a socket formed in an elef of the door, said stud having an opening therethrough 'for the receipt of a locking mechanism.

5. In 'a lock for elevator doors embodying therein the eonibination with two oppositely and vertically movable sections, the upper of which has an astragal having an "opening theretlnoiilgh, and the lower ot which has anangle metal frame having an openingtherethrough adapted, when the door sections are closed, to register with the opening in said astra-gal and form therewith a `socket adapted to receive the bolt, of a base plate permanently secured to the building wall adjacent an elevator door, a plate slidably mounted upon said base plate, a bolt carried by said plate, and adapted to enter a socket formed in an elevator door, means act-ing to normally retract said bolt from the path otl movementof the door, and means whereby said last" named means may be made inoperative, said slide carrying the bolt having a flange adapted to prevent access to the means securing the lock to the building wall structure when said bolt engages a door, whereby removal.y of said lock is prevented exceptby the release of the means acting upon the retracting mechanism.

6. In a lock tor elevator doors embodying therein the combination with two oppos'itely and vertically movable sections, the upper of which has an astragal having an opening tl'ierethrough, and the lowerl ol which has an angle metal trame having an opening therethrough adapted, when the door sections are closed, to register with the opening in said astragal and form therewith a socket adapted to receive the bolt, of a base plate having' an outturned ilange positioned towards the elevator shatt and having an opening therethrough and elongated countersunk openings therein whereby it may be attached to the j amb ot a door opening and be adjusted in relation to a `socket in the door closing saidy opening, an

angle metal Ybolt plate, one flange ot which is slidably mounted upon said base plate and olf' a width to close said counter-sunk openings when the bolt is engaged with the door and prevent the movement ot' the lock except when the bolt is retracted, a bolt carried by said plate passing through the opening in said outturned flange and adapted to enter a socket formed in an elevator door, a guide stud having an enlarged head carried by said outturned flange and co-operating with said bolt plate, and a coiled spring encircling said stud and acting between said bolt plate and said outturned flange, whereby said bolt is normally retracted from the path of movement of the door, said stud having an opening therethrough for the receipt of a locking mechanism.

In witness whereof I have hereunto atlixed my signature, this 4th day of De cember, 19245.

CHARLES l/V. PEELLE. 

